China's economy is off to a sluggish start this year, with trouble extending beyond the manufacturing sector.

The real estate market is showing signs of weakness. Industrial production, retail sales, and investment growth have all disappointed. The economic slowdown has also led to a steep decline in the price of copper and iron ore.

Many economists have now downgraded their growth forecasts, and some think Beijing may not be able to meet its 7.5% GDP target for 2014.

Beijing will almost certainly respond with some stimulus measures, but the question is how far officials are willing to go.

In the past, policymakers might have responded by pushing cheap credit into the economy and pursuing other quick fixes to boost growth.

But Beijing has started a series of market-oriented reforms that include a crackdown on the shadow banking sector and runaway local government debt. Another sugar high of easy credit could endanger those initiatives.